<svg xmlns="http://www.w3.org/2000/svg" xmlns:wrs="http://www.wiris.com/xml/mathml-extension" height="25" width="57" wrs:baseline="16"><!--MathML: <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>v</mi><mn>1</mn></msub><mo>&lt;</mo><mo>&#xA0;</mo><msub><mi>v</mi><mn>2</mn></msub><mo>&#xA0;</mo></math>--><defs><style type="text/css">@font-face{font-family:'math1072b030ba126b2f4b2374f342b';src:url(data:font/truetype;charset=utf-8;base64,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)format('truetype');font-weight:normal;font-style:normal;}</style></defs><text font-family="Arial" font-size="16" font-style="italic" text-anchor="middle" x="4.5" y="16">v</text><text font-family="Arial" font-size="12" text-anchor="middle" x="12.5" y="21">1</text><text font-family="math1072b030ba126b2f4b2374f342b" font-size="16" text-anchor="middle" x="24.5" y="16">&lt;</text><text font-family="Arial" font-size="16" font-style="italic" text-anchor="middle" x="40.5" y="16">v</text><text font-family="Arial" font-size="12" text-anchor="middle" x="48.5" y="21">2</text></svg>